| Achievement | How to unlock |
| Caramelizer (15 points) | Try to cook some sugar in Chapter 3.
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| Clueless (15 points) | When asked Whodunnit for the first time, accuse the innocent.
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| Doggie Fashionista (15 points) | Try every accessory once.
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| Down the Drain (20 points) | Complete Chapter 4.
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| Hounds of Horror (20 points) | Complete Chapter 3.
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| Memory Lane (10 points) | Find an object from a Wallace and Gromit movie.
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| Meteorologist (15 points) | Can the official forecast banish the bully from Felicity’s doorstep?.
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| Mmm... Cheese! (15 points) | Find this episode's "mystery cheese" in Chapter 2.
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| Ocean Notion (20 points) | Complete Chapter 1.
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| Oh I Say! (20 points) | Hear Wallace say "I say!" in seven situations.
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| Tea, Everyone? (15 points) | Offer a cuppa to all your guests.
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| The Guest House Mutiny (20 points) | Complete Chapter 2.
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